Regensburg 2019 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 6: Poster I

BP 6.68: Poster

Montag, 1. April 2019, 17:30–19:30, Poster B2

Time series irreversibility and entropy production in biological systems — •Samuel Salinas Almaguer and Matthias Weiss — Experimental Physics I, University of Bayreuth, Germany

Quantifying whether a noisy signal, e.g. some fluorescence time series, originated from a non-equilibrium process is a big challenge. Differentiating between the forward time series and its inverse at least allows for identifying whether detailed balance is broken, i.e. if there is a preferred flux direction in phase space. Following previous reports, we have explored with numerical and experimental data to which extent an autoregressive model can detect broken detailed balance. We also used the approach to assign lower bounds to the system's entropy production via the Kullback-Leibler divergence.